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21
An, Chae H., 559.9-A531m | The MIT Press | 1988 559.9-A531m,
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Egerton-Thomas, Christopher, 591.986-E29h | John Wiley & Sons | 1995 591.986-E29h,
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Egerton-Thomas, Christopher, 591.9-E29h | John Wiley & Sons | 1996 591.9-E29h,